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Netty

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medium advisory

Netty HttpContentDecompressor Brotli/Zstd/Snappy Decompression Bomb Vulnerability

Netty's HttpContentDecompressor and DelegatingDecompressorFrameListener are vulnerable to a decompression bomb denial-of-service attack because the maxAllocation parameter is not enforced when Content-Encoding is set to br (Brotli), zstd, or snappy, allowing attackers to bypass decompression limits and cause unbounded memory allocation.

netty-codec-http +3 decompression-bomb denial-of-service netty http
3r 1t
medium advisory

Netty Lz4FrameDecoder Resource Exhaustion Vulnerability

Netty's Lz4FrameDecoder is vulnerable to resource exhaustion, where an attacker can cause excessive memory allocation by sending a small, crafted header, leading to a denial-of-service condition; this affects netty-codec-compression versions up to 4.2.12.Final and netty-codec versions up to 4.1.132.Final.

netty-codec-compression +1 resource-exhaustion denial-of-service netty
2r 1t
medium advisory

Netty DNS Codec Input Validation Bypass Vulnerability

Netty's DNS codec fails to enforce RFC 1035 domain name constraints, leading to potential DNS cache poisoning, denial-of-service, and domain validation bypass through null byte injection, overlength labels, silent truncation, and unbounded memory allocation.

Netty 4.2.12.Final netty dns vulnerability cache-poisoning
2r 1t
medium advisory

Netty epoll Transport Denial of Service via RST on Half-Closed TCP Connection

Netty's epoll transport fails to properly close TCP connections that receive a RST after a half-close, leading to resource exhaustion and potential CPU busy-loops, impacting service availability.

netty-transport-native-epoll denial-of-service netty epoll resource-exhaustion
2r 1t
high advisory

Netty HttpClientCodec Response Desynchronization Vulnerability

The Netty HttpClientCodec is vulnerable to response desynchronization when configured with HTTP/1.1 pipelining, HEAD requests, and the server sends 1xx responses, leading to a response body from one request being parsed as another and potentially unsafe socket reuse.

netty-codec-http +1 netty http desynchronization vulnerability
2r
medium advisory

Netty HTTP/3 QPACK Literal Unbounded Allocation Vulnerability

A vulnerability in Netty's HTTP/3 QPACK decoder allows an attacker to cause a denial of service by sending a crafted HTTP/3 header that triggers excessive memory allocation, leading to a server crash.

netty-codec-http3 netty http3 qpack denial-of-service vulnerability
3r 1t